Download Advances in Electromagnetic Fields in Living Systems by James C. Lin (auth.), James C. Lin (eds.) PDF

By James C. Lin (auth.), James C. Lin (eds.)

Hardly any phenomenon within the glossy surroundings is as ubiquitous as electromagnetic fields and waves. we now have realized to appreciate the actual features of those power varieties, and we have now utilized them in plentiful how you can decorate our methods of existence and our criteria of residing. additionally, we've come to rely on them for well-being, defense, info, comfOli, and conveyance. except their meant roles, those electromagnetic fields and waves have other results which can impression the actions of residing organisms. the results produced depend upon many actual, chemical, and organic components. they're grossly obvious and visual quickly after publicity of the dwelling organism or they won't seem to have stimulated the organism in any respect upon informal exam. Even then, there is refined adjustments that are merely detectable upon cautious chemical or microscopic learn, or that are obvious merely after a substantial time hold up. however, our figuring out of the interplay of electromagnetic fields with dwelling platforms is advancing in quite a lot of topical parts. This bi-annual sequence with invited experiences by way of famous leaders of their respective specialties, will current development up to now in key parts of study and scholarship. The guiding philosophy of this venture is the presentation of built-in, recognized, and confilmed phenomenological observations, simple mechanism of interactions, and functions in biology and drugs, in addition to views on present issues of interest.

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Evoked potential responses were recorded in the eighth cranial nerve, medial geniculate nucleus, and the primary auditory cortex (three components of the auditory system) in cats exposed to pulsed 2450-MHz RFR. These evoked responses were eliminated after damaging the cochlea [Taylor and Ashleman, 1974]. Guy et al. [1975] studied the threshold of evoked responses in the medial geniculate nucleus in the cat in response to pulsed RFR while background noise (50-15000 Hz, 60-80 dB) was used to interfere with the response.

1987b]. Interestingly, the effect ofRFR on HACU in the hippocampus was blocked by pretreatment of the animals with the opiateantagonists naloxone and naltrexone, suggesting involvement of endogenous opioids in the effect. Endogenous opioids are a group of pep tides synthesized by the nervous system and have pharmacological properties like opiates. They are involved in a variety of physiological functions such as stress reactions, temperature-regulation, motivational behaviors, etc.

Effect of the pulsed radiation was more prominent. A 'power window' effect was also reported in this study. Preston et al. 02-6 W/kg) and observed no significant change in radioactive mannitol distribution in various regions of the brain. In that paper, they suggested that an increase in regional blood flow in the brain could explain the results of Oscar and Hawkins [1977]. 0 W/kg) or with the head for 25 min at different power densities. Gruenau et al. [1982] also reported no significant change on the penetration of 14C-sucrose into the brain of rats after 30 min of exposure to pulsed (2 lls pulses, 500 pps) or continuous-wave 2800-MHz RFR of various intensities (1-15 mW/cm 2 for the pulsed radiation, 10 and 40 mW/cm 2 for the continuous-wave radiation).

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